JavaScript tabifier

Converts your HTML into a dynamic tabbed interface.
Does not require you to set up a list of links, or anchors for the tabs.
Plug and play: no need to know JavaScript, just make a few simple changes to your HTML.
Use CSS to customize the appearance of the tabs.
Gracefully degrades if JavaScript is not present and allows a different set of styles to be applied when JavaScript is not present.
Gracefully supports printing (try a print preview on the example.html page) and allows a different set of styles to be applied when printing.
Multiple tab sets on a page – you can even nest one tab set within another.
Set the initial tab to be displayed.
Use javascript to control which tab is displayed.
Define onLoad and onClick callback functions to perform more advanced functions, such as loading the tab content dynamically using AJAX.
Use a cookie to remember which tab was selected so it remains selected when you return to the page.
Object-oriented, extensively-commented code.
MIT license so you can modify and use in commercial projects.